diff --git a/core-parent/core/src/main/java/love/forte/simbot/core/listener/CoreListenerManager.kt b/core-parent/core/src/main/java/love/forte/simbot/core/listener/CoreListenerManager.kt
index 1dde7f274..ddd51ffee 100644
--- a/core-parent/core/src/main/java/love/forte/simbot/core/listener/CoreListenerManager.kt
+++ b/core-parent/core/src/main/java/love/forte/simbot/core/listener/CoreListenerManager.kt
@@ -147,14 +147,14 @@ public class CoreListenerManager(
                 oldValue.apply { addAll(value) }
             }
 
-            ConcurrentHashMap<Int, Int>().clear()
-
             // clear cache map.
-            // 寻找并更新缓存监听
-            // no. 直接清除缓存。
-            cacheListenerFunctionMap.clear()
+            // 清除缓存
+            if (cacheListenerFunctionMap.isNotEmpty()) {
+                cacheListenerFunctionMap.clear()
+                logger.debug("Listener cache cleaned.")
+            }
+
 
-            logger.debug("Listener cache cleaned.")
 
         }
     }
diff --git a/pom.xml b/pom.xml
index d800386f8..45236c0e2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -65,7 +65,7 @@
         <!-- plugins -->
 
         <!-- dokka version -->
-        <dokka.version>1.4.20</dokka.version>
+        <dokka.version>1.4.0-rc</dokka.version>
         <!-- sb maven version -->
         <spring.version>2.3.5.RELEASE</spring.version>
 
@@ -631,6 +631,7 @@
                 <plugin>
                     <groupId>org.jetbrains.dokka</groupId>
                     <artifactId>dokka-maven-plugin</artifactId>
+                    <!--<version>1.3.9</version>-->
                     <version>${dokka.version}</version>
                     <executions>
                         <execution>